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APPLICATION FILED SEPT. I. I9I5. RENEWED SEPT. I. I9I5.

11,22452 Patented Mf1y1,1917.

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APPLICATION FILED SEPT. l, 195. RENEWED SEPT. 7. i916.

-Le Pfnted May 1, 1917.

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I/V VE N TUI? ARMIN POLLAK, OF NEW YORK, N. Y.

LOCK.

Application filed September 1, 1915, Serial No. 48,451.

To all 'whom it may concern Be it known that I, ARMIN POLLAK, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in Locks, of which the following is a specification.

This invention relates to' improvements in locks and particularly to the keyless type, known as permutative asl applied to the doors of buildings and containers where a high degree of security is desired.

One of the objects is to provide a lock having a plurality of independently adjustable setting means, operable from either or both sides of the door, and separate bolt actuating means also operable from both sides.

A second object is to provide a highly eliicient bolt locking device that prevents picking or sliding the bolt under any circumstances when in locked position.

These and other allied objects are attained by the novel construction and combinationl of parts hereafter described and shown in the accompanying drawings, forming part of this specification, and in which Figure 1 is a top plan view of the lock indicating its application to a door.

Fig. 2 is a front elevation of thelock, the cover plate and its attached mechanism being removed, and the bolt with its actuating devices shown retracted in full lines and eX- tended in broken lines.

Fig. 3, is a similar view of the cover plate, looking from the inner side.

Fig. 4 is a vertical sectional. view ofthe lock, taken substantially on line 4 4 of Fig. 3;

Fig. 5 is a like sectional view taken on line 5-5 of Fig. 2.

Fig. 6 is a similar fractional sectional view, taken on line 6-6v of Fig. 3.

Fig. 7 is a detail view showing a modified form of tumbler.

Fig. 8 is a similar view of the-preferred form of tumbler.

Fig. 9 is a plan view of the same, and,

Fig. 10 is a side view of an adjustable tumbler stem.

The lock is comprised of a main rectangular casing 15 having lugs 16 to which the clover plate 17 is attached by screws in such Specification of Letters Patent.

Patented May 1, 1917.

Renewed September 7, 1916. SeriaI No. 118,944.

manner as to be concealed by the door 19, the lock being near its edge as it closes with respect to the jamb 20, to which is secured the keeper 21.

Inside the casing 15 are grooved vertical guide-ways 23, in which slide projections 24 of the bar 25.

Another guide-way 27, arranged longitudinally of the casing, slidably receives a projection extending rearwardly from the eX- treme inner end of the bolt 28, which is formed with an enlarged head 29, adapted to be projected out through the front of the casing and engage with the keeper 21. A spring 30 normally maintains the bolt in a retracted position.

A shaft 32 passes through the casing and its cover, together with the rigid sleeve 33, and is provided with an operating hand lever 34 on the inner side of the door, and a knob 35 on the other side, so that the shaft may be turned; this shaft is closely transversant to the lower edge of the bolt 28 and has rigidly attached to it a pawl 36 provided with an arm 37 overlying the bolt and adapted to make contact with the pin 39 set rigidly in the side of the bolt 28; thus when the shaft is turned in the proper direction the bolt will be moved outwardly.

Also rigidly attached to the shaft 32, belowthe bolt28, is a lever 40, pivotally connected at its end with a link 41, pivoted in a recess 42 formed in the upper side of the bar 25., one edge of the recess acting as a stop, limiting the motion of the link when the bar is moved down by the combined action of the link, lever 40 and shaft.

lVhen the bar 25 is raised by a reverse action ofthe shaft, and the bolt 28 moved forward through the pawl arm 37, a projection integral with the bar and formed with a curved end 42 rises past the rounded point 43' of the bolt and enters the space then plained, and the other provides means which indirectly accomplishes the same purpose.

Referring particularly to Fig. 3 of the` drawing, gears 45 are shown each rigidly mounted on sleeves 46 which extends beyond the face of the gears and through which is a slot 47. On the opposite face of these gears are cam surfaces 48, having a single throw or high point, and extending below these are barrels 49 slightly grooved on their peripherics, as at 50, the grooves being receptive of the ends of flat springs 51 acting as snap detents, the other end 52 of the springs being rigidly secured to the inside of the cover plate 17.

These barrels are bored to receive the stems 55 of the spindles 56 and are slotted and numbered as shown in Fig. 9 to agree with the slots 50 on their exteriors, the stems 55 having a key 57 suited to the slots 58, and are held in an adjusted position by screw threaded nuts 59 suited to the stems 55.

These spindlespass out through the cover 17 and sleeves rigid with it, the sleeves being of a length sufficient to extend through the door and are provided with knurled knobs 61 secured to the spindles by means of pins as shown.

Thus' it-is possible to turn the spindles, and through them the gears and sleeves until the slots 47 are correctly positioned, with reference to the lugs 62, formed rigidly with the bar 25, which are adapted to enter the slots, thereby allowing the bar to move down and the bolt to be retracted by the means before mentioned.

The other preventative means consists of a rigid block 65 secured to the inner side of the cover plate 17, the block having a rectangular, centrally disposed aperture receptive of stops 66, each of which is independently retractable by its individual lever 67, fulcrumed at 68 and provided with a return spring 69.

These levers 67 are so formed and located as to be operated by the cams 48 as the knobs 61 are rotated. When all the cams are so positioned as to bring their high points into contact with the levers, all the stops 66 will be withdrawn, but if one or more of the stops project, it will contact with the pawl arm 38 and prevent the shaft 32 from turning, hence holding the mechanism in a locked position.

The knobs 61 are provided with an index 70 whereby the position of the slots 47 may be determined; it will be evident that due to the changes that can be made in the relative position of the spindle 56 and operative parts combinedV with them that a wide range of permutations can be made.

In order to operate the lock from the other side of the door there are rigid sleeves extending into the lock casing, and revolubly mounted in them are short spindles 81 having actuating knobs 82, provided with index points 83 at their outer ends and gears 84 meshing with-the gears 45 so as to transmit motion to the described mechanism and operate the lock.

l/Vherethe lock is only to be operated from one side, these gears are not required and may be omitted as shown in Fig. 7.

In operation, to lock the door, it is only necessary. to turn the lever 34 or the` corresponding knob 35; thereby sliding the bolt 28, and afterward turn the knobs 61 or 82 so as to move the slots out ofregister with the lugs 62, which co-incidentally allows the stops 66 to rise, preventing the pawl arm38- from operating.

In unlocking the knobs are turned into such position that the indices stand vertical and then each of either set turned individually to bring the slots into register with the lugs; this can be done in the dark or by a blind person as the springs 51 click audibly and also are sensible to the touch as they pass from one to another of the slots .50, thus allowing an operator to count correctly until assured that the proper point in rotation has been reached; this may mean from one to eight clicks of the spring, according to the position of the spindle with referenceto the sleeve. u

I-Iaving thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a lock, the combination with a sliding bolt, a shaft, an arm on said shaft adapted to propel said bolt outwardly and an actuating means for said shaft, of a plurality of stops, an arm on said shaft engageable with said stops when in a locked position, pivoted levers operatively combined with said stops, a rotatable cylindrical cam for actuating each lever independently and means for actuating said cams, said means being permutatively adjustable and accessible from the exterior of the lock casing.

2. In a lock, the combination with a casing,a sliding bolt therein, and a shaft oiper- 1 atively combined in said casing for actuating said bolt, of a laterally movable recessed bar parallel to said bolt, a lever combined with said shaft, a link pivoted in said bar' and said lever whereby said bar is operated conjunctively with said bolt, means operative in the recess of said bar for limiting an excess of motion rof said shaftY in either direction and means for operating said shaft.

3. In a lock, the combination with a casing, a sliding bolt therein, and a shaft'operatively combined in said casing for actuating said bolt, of a laterally movable bar parallel to said bolt, connections between said shaft and said bar whereby asimultaneous motion is compelled, a plurality of slotted sleeves'each independently operable in said casing, lugs formed with said bar engageable in the slots of said sleeves, means for rotating said sleeves a predetermined degree whereby the mentioned slots are brought into register with said lugs and a second operating means, disposed on the opposite side ci' said casing, and geared to the first mentioned operating means.

4f. In a lock, the combination with a casing, a sliding bolt therein, and a shaft operatively combined in said casing for actuating said bolt, of a laterally movable bar parallel to said bolt, connections between said shaft and said bar whereby a simultaneous motion is compelled, a plurality of slotted sleeves each independently operable in said casing, lugs formed with said bar engageable in the slots of said sleeves, means for rotating said sleeves a predetermined degree whereby the mentioned slots are brought into register with said lugs, gears combined with said sleeves, a second series of gears engageable therewith and means for operating said second gears on the opposite side of said casing.

5. In a lock, the combination with a casing, a sliding bolt therein, a spindle operatively combined in said casing for actuating said bolt, of a laterally movable bar parallel to said bolt, connections between said spindle and said bar whereby a simultaneous motion is compelled, lugs formed transversely on the face of said bar, a plurality of sleeves rotatably mounted in said casing, each of said sleeves having a slot registrable with a corresponding lug, a barrel having an indented surface formed with said sleeve, a spring click engaging the mentioned indentations, a spindle adjustably secured in said sleeve and means for rotating said spindle whereby the slots in said sleeves may be brought into registration with said lugs.

In testimony whereof I have signed my name to this speciication.

ARMIN POLLAK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

i Washington, D. C. 

